nicker⁴ /nikˈər/

1. A clay marble (also knicker)
2. The round seed of a Caesalpinia (or Guilandina if this is considered a separate genus), used for playing marbles (also nickˈar)

• epistolaries
• epistolary
• epistolatory
• epistoler
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• epistolet
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• epistolic
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• epistolise
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• epistolises
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• epistolography
• epistrophe
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• epistyle
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• epitaph